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10 results for “Araripichthys”
Fig. 12 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 12. The position of Araripichthys within two alternative phylogenies of teleost fishes (much simplified); (A) scheme of Patterson and Rosen (1977); (B) scheme of Arratia (1996).
Fig. 11 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 11. Isolated right epineurals of Araripichthys castilhoi (AMNH 11948). Two epineurals are seen here, one overlying the other, both with branching proximal ends. Most of the other epineurals on this side have been lost, but those of the left side (arrowed) are still in place and can be seen between the neural arches.
Fig. 10. Araripichthys castilhoi, AMNH 13968 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 10. Araripichthys castilhoi, AMNH 13968, Lower Cretaceous, Santana Formation, Brazil. Stereopair of acidprepared occipital region (oblique posterolateral view, left side). The vertebral column has separated from the exoccipitals, revealing the tripartite occipital condyle involving the exoccipitals above the basioccipital articular surface. The intercalar has broken off in this specimen (it is intact in AMNH 11948; see previous figure). Note also that the supraoccipital does not reach the foramen magnum, which is enclosed by the exoccipitals. No scale; ~×1.8.
Fig. 9. Araripichthys castilhoi, AMNH 11948 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 9. Araripichthys castilhoi, AMNH 11948, Lower Cretaceous, Santana Formation, Brazil. Stereopair of acidprepared occipital region (lateral view, right side). The first vertebral centrum is fused to basioccipital, but it is separated by a narrow gap from the exoccipitals, and the neural arch contacts the exoccipital above spinal nerve opening. Parts of three epineural bones of the left side are exposed between the anterior neural arches. Note also the presence of a wide unossified space between the supraoccipital and exoccipitals, as well as the round opening between the pterosphenoid and sphenotic connecting the orbit and dilatator fossa (both these features are also evident in fig. 10).
Fig. 6 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 6. Detail of the head in two acidprepared specimens of Araripichthys castilhoi from the Santana Formation of Brazil showing the welldeveloped premaxillary process and articular condyle on maxilla. (A) AMNH 11943; (B) AMNH 13968 (compare with fig. 3).
Fig. 7 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 7. (A) Phylogenetic relationships and minimum dates for divergence in Araripichthys; (B) areal relationships based on phylogeny.
Fig. 5 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 5. Outlines of the head region in (A) Araripichthys axelrodi (as preserved), (B) Araripichthys castilhoi (reconstructed, from Maisey and Blum [1991] but omitting the supratemporal and posttemporal shown in their illustration), and (C) Araripichthys corythophorus from Morocco (as preserved; modified after Cavin). Note presence of more extensive premaxillary process and articular condyle on maxilla in parts B and C.
Fig. 4 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 4. Example of a complete Araripichthys castilhoi skeleton from the Santana Formation of Brazil, following preparation in acid (AMNH 13968).
Fig. 3 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 3. Araripichthys axelrodii; the holotype, P907 MBLUZ (detail of head). Note presence of short premaxillary process (pmp) but absence of articular condyle of maxilla.
Fig. 1 in A Review of the Problematic Extinct Teleost Fish Araripichthys, with a Description of a New Species from the Lower Cretaceous of Venezuela
Fig. 1. Occurrences of Araripichthys discussed in the text. (A) A. axelrodi, from Venezuela (Aptian);
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